Value Collection MP40415 Set Screw 1/2-13 X 3/4 in Cup Point

Product Description

The VALUE COLLECTION MP40415 is a 1/2-13 x 3/4 inch cup point set screw manufactured from Grade 8 alloy steel. Set screws are headless fasteners that thread fully into a tapped hole to secure a component — such as a collar, gear, or pulley — against a shaft. The cup point design bites into the shaft surface to resist rotation and axial movement under load. This screw drives with a 1/4 inch hex key and meets ASME/ANSI B18.3 and ASTM F912 standards. It is sold in a package of 10 pieces.

Cup point set screws of this size are common in industrial, mechanical, and HVAC equipment assemblies wherever a rotating or sliding component must be positionally locked to a shaft. The 1/2-13 UNC thread and Grade 8 alloy steel construction make this fastener suitable for moderate to high-clamp-load applications where standard steel fasteners would be inadequate. Machinists, millwrights, and maintenance technicians regularly use this size in fan wheel hubs, shaft collars, and drive couplings across light industrial and commercial equipment.

Key Features

• 1/2-13 UNC thread for broad compatibility with standard tapped holes
• 3/4 inch overall length provides sufficient engagement depth for shaft-locking applications
• Cup point geometry bites into shaft surface to resist axial and rotational movement
• Grade 8 alloy steel construction for high tensile and torsional strength
• 1/4 inch hex key drive for precise installation torque control
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards

Compatibility

Designed as a standard UNC set screw for use in any application with a 1/2-13 tapped hole requiring a cup point fastener. Verify thread engagement depth and hole preparation before installation.

Installation Notes

Installation requires a 1/4 inch hex key or Allen driver. Ensure the receiving shaft and tapped hole are clean and free of debris before threading the screw. Power down and de-energize any equipment before servicing fastened assemblies. Do not exceed the tapped hole depth to avoid bottoming out the screw before achieving proper clamp load.